JTS Topology Suite

JTS is an open source library of spatial predicates and functions for processing geometries. It provides a complete, consistent, and robust implementation of fundamental algorithms for processing linear geometry on the 2-dimensional Cartesian plane.

locationtech project

JTS Topology Suite

locationtech projectJTS

JTS Topology Suiteprovides an object model for planar geometry together with a set of fundamental geometric functions. JTS conforms to the Simple Features Specification for SQL published by the Open GIS Consortium.  JTS is designed to be used as a core component of vector-based geomatics software such as geographical information systems. It can also be used as a general-purpose library providing algorithms in computational geometry.

Core features

  • Geometry Model

    • Point, Line, Area
    • Geometry Collections
  • Geometry Operations

    • All SFSSQL operations: Intersect, union, within, ...
    • Full DIM-9 Relationships
  • Precision handling

    • Work with float, double, fixed, and double double coordinates
  • Geometric constructions

    • Factory driven construction for consistent configuration
  • Metric functions

    • Cartesian 2D distance, Hausdorff distance, ...
  • Spatial algorithms

    • buffer creation, line offsets, line simplification, ...
  • Spatial structures

    • Spatial indexes: Quadtree and R-tree
    • Advanced: Delauney triangulation
  • Input / Output

    • Text: WKT, GML, GeoJSON, ...
    • Binary: WKB
    • Integration: Shapefile, Oracle SDO, ...
  • High-precision arithmetic

    • Computational stability backed by an extensive test suite and 17 years of development and refinement.

Implemented Standards

  • Geographic JSON (GeoJSON)
  • Geography Markup Language (GML)
  • Simple Features for SQL (SFSQL)
  • Well-Known Binary (WKB)
  • Well-Known Text (WKT)